examples of telephones [3]![click to hear](/images/speaker.jpg)
The shape and function of telephones is constantly evolving; today’s phones relay computer data as well as voice communication.
telecommunication terminal ![click to hear](/images/speaker.jpg)
Equipment made up of a keyboard and a visual display unit that is used to transmit data over a telephone network.
keyboard ![click to hear](/images/speaker.jpg)
Contains a group of keys that correspond to characters and functions.
alphanumeric keypad ![click to hear](/images/speaker.jpg)
Keys corresponding to letters, numbers, symbols and functions that are used to generate characters or control operations.
operation keys ![click to hear](/images/speaker.jpg)
Buttons used especially to establish and interrupt communication.
numeric keypad ![click to hear](/images/speaker.jpg)
Keys corresponding to numbers, mathematical operators and functions that are placed in a specific order to speed up numeric data entry.
function keys ![click to hear](/images/speaker.jpg)
Buttons that control the terminal’s main operations, including send, delete and return.
visual display unit ![click to hear](/images/speaker.jpg)
Liquid crystal display screen on which graphics or text data are displayed.
housing ![click to hear](/images/speaker.jpg)